Lewis l



(No Model.)

L. L. HEPBURN. DETAGHABLY SECURING BARRBLS T0 STOCKS.

No. 518,950. Patented May 1,1894.

UNITED STATES PATENT OFFICE.

LEWIS L. HEPBURN, on NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE MARLIN FIRE ARMS COMPANY, OF SAME PLACE.

DETACHABLY SECURING BA RRELS. TO STOCKS.

SPECIFICATION forming part of Letters Patent No. 518,950, dated May 1, 1894.

Application filed March 5,1894. Serial No. 602,396. (No model.) i

To all whom it m y 0071106773: located in relation to each other as to serve Be it known that I, LEwIs L. HEPBURN, a as stops to hold the barrel in the exact posicitizen of the United States, residing at New tion required, when screwed into the receiver. Haven, in the county of New Haven and State It is obvious that these or any similar stops of Connecticut, have invented certain new may be located ,at other points on the abutand useful Improvements in Firearms, of tingfaces, and operate the same, but in pracwhichthe following is a specification tice I find this the most convenient arrange- My present invention relates to means for ment. I then construct a camfaced ring 0, attaching and detaching-the barrel-of a gunof the form shown in- Fig. 5, the hole in said to from the receiver or frame, and the invenring being such as to enable it to he slipped tion consists of a cam ring interposed between over the screw thread on the rear end of the the receiver and the band or a shoulder on barrel, and fit against the band H as shown the barrel, by which after the barrel has been in Fig. 4, it turning freely on the barrel, and screwed fast to the receiver, the parts are its handle or lever 'L fitting in the recess 15 cammed or wedged tight, all as hereinafter formed by the cut away portion of the-band more fully set forth. at one side, and projecting at the lower edge Figure l is a side elevation, showing the far enough to be operated by the hand, as parts united. Fig-'2 is a top plan view of shown in Figsl and 4. Oneface of this ring the same. Fig. 3 is a perspective view of the G is made inclined or wedge shaped, as shown zorfront end of the receiver; Fig. 4, a perspecat b, Figs.- 6 and 7, and the face of the band tive view of the rear end of the barrelwith against which it bears is correspondinglyinthe cam ring in position. Fig. 5 isa face dined-transversely as shown in Figs. land view of the cam ring detached; Fig. 6, an 2, so that when, the band is turned in the edge view of the same; and Fig. 7, a similar proper direction, these inclined faces bear 2 5 edge view looking from the top downward. one against the other, and thus the ring acts The object of this invention is to enable a as a wedge or cam between the abutting faces person to detach the barrel of a gun from its of the receiver and the band, thusirendering receiver or frame for convenience in packthe union of the barrel and the receiver tight mg or carrying the same, and to readily atand perfectly rigid. It is obvious that in 30 taoh the parts when desired for use, and at case no stock band he used, the ring will bear 8c the same time render the union of the. parts directly against the shoulder on the barrel, rigid and secure. In order to accomplish and have thesame effect; but as most guns, this result I make the re'ceiverA with a hole, and especially magazine guns are constructed having a screw thread Ecutin the walltherewith such a band, I have so shown it. v 3 5 of, as shown in Fig. 3, and on the rear end of In order to limit themovement of the ring, 8 5 the arrel B cut a corresponding thread I as I 'form it-with ashoulder d as shown in Fig. shown in Fig. 4, these parts being fitted so as 5, which, when the lever or handle is thrown to be easily screwed together; The barrel is outward to unlock the parts, strikes against formed with a shoulder against which the a corresponding shoulder on the band as 40 stock band H fits snugly asis customary, the shown in Fig. 4, where the lever is shown rear face of this band being cut away around thrown outward and the shoulders in contact. the barrel and down along one side to make It is .obvious that theincline maybe madeon room for the cam ringCand its. lover or haneither face of the ring, it only being necesdle L, as shown in Fig. 4. It is also cutaway sary to locate the incline on the part against 5 slightly at its opposite lower side in such which it bears opposite the incline on the manner as toieave ashoulder hagainst which ring. The ring is held in place on the bara projection a on the lower edge of the rerel by -a screw Z, Fig. 4, the surface of the ceiver (shown in Figs: 1 and 3) strikes when ring being cutaway so as to permit the edge the parts are screwed together, the shoulder of the .screw'head to lap over it and prevent 50 7aand the projection a being so adjusted or it from falling oif, this cut-away portion being of sufficient extent to permit the ring to be moved as far as is necessary.

In case-it be desired to apply this inventle more, in order to enable the barrel and receiver' to be screwed together or unscrewed. In order to do this, I make the magazine tube with its follower movablelongitudinally, so that by moving it inihe direction of the muzzle of the gun,the follower is moved back out of the way, to the position shown in Fig. 4. For this purpose I arrange the magazine tube and its spring catch which looks it in position, as shown and described in the Patent No. 469,819, issued to J. M. Marlin, March 1, 1892, or in similar manner .by which it is rendered movable as described. In case the cam ring be applied to any other than a magazine gun, as it obviously may be with equal advantage, nothing of this kind will be required, as in such case there will'he no follower, and consequently none to project or withdraw.

The operation is simply as follows: The-follower having been'drawn back (in case one be used) the barrel is screwed into the receiver until the projection a strikes against the shoulder h, at which time the barrel will have been screwed home so as to bring the abutting faces of the band and the receiver in contact, when by pressing the lever L in ward, the ring will, be turned sufficiently to cause its inclined face tween the parts, and thus lock the parts tight, and render the joint perfectly rigid. It will readily be seen that when the parts are b to act as a wedge be screwed together until the abutting faces are brought in contact, there can be but very little if any looseness in the joint, and that consequently only a very' slight movement of the ring is necessary to render the joint tight and rigid. In practice I prefer to make the inclines so that it will not be necessary to shove the lever entirely home in order to produce the necessary wedging action, while the parts are new, so that in case" the screw threads should beworn by use,suoh wear can be compensated for by simply pressing the lever a little farther in.

To detach the barrel, the follower willfirst be withdrawn, the lever pushed outward to unlock the parts, when the barrel can be readily unscrewed from the receiver.

The device is simple, cheap to construct, and exceedingly efficient.

Having thus fully described my invention, what I claim'is' 1. The combination in having its rear end provided with a screw thread, a receiver provided with a hole havmg a corresponding screw thread, and a cam ring interposed between the band or shoulder on the barrel for wedging and locking the parts fast and rigid as set forth.

2. In combination with the receiver and barrel of a' gun, a cam ring provided with an inclined or wedge shaped face and a lever or handle for operating the same, said cam-ring being located between the face of the receiver and the band or shoulder on thebarrehsubstantially as and for the purpose set forth.

In witness whereof I hereunto set my hand in the presence of two witnesses.

LEWIS L. HEPB URN.

Witnesses:

J. M. MARLIN, CHARLES F. SMALL.

a. gun, of a barrel 

